Paul Pierce scored 17 of his 26 points in the third quarter as the Celtics erased a 19-point deficit and went on to consecutive wins for the first time since late November against Oklahoma City and Orlando.

Boston, which beat Indiana 94-75 on Friday night, had lost four straight road games.

Lou Williams scored 21 of his 28 points in the first half for Atlanta, which has lost two straight. Jeff Teague added 17 points, and Josh Smith, who was 2 for 12 in the second half, finished with 12 points and 10 rebounds.

The Hawks got off to a fast start, then fell apart in the third quarter as Boston began doubling ballhandlers on the perimeter and clamping down on Atlanta inside.

The Celtics trailed by 19 with 6:20 left in the second, but went up 61-60 on Jared Sullinger’s alley-oop layup with 3:47 left in the third. It was their first lead since the game’s first minute.

Boston opened the third with a 14-1 run to pull within one. Hawks coach Larry Drew, whose team missed its first five shots from the field to begin the second half, called timeout at the 7:29 mark, but Teague lost the ball out of the bounds on the ensuing possession.

Atlanta was just 2 for 14 from the field in the third and trailed 71-62 heading to the final period.

PACERS 95, BUCKS 80

INDIANAPOLIS — Roy Hibbert had 20 points, 15 rebounds and five blocked shots to lead Indiana to a victory over Milwaukee.